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Thanks Eric - I'Ve been working with ETs for more than 12 years now, and
I'M aware that the ETs I have are mostly glass.  I also have "Broadcast
Transcription Discs" by James R. Powell, Jr. and I'Ve done a lot of
research and have already digitized a couple hundred disks.  I'M just
updating and upgrading the turn-table.  I'Ve encountered most problems
associated with this format including the extruding of binder through the
lacquer/shellac.  I probably have somewhere near 10,000 or more of them
and most have been re-housed in archival sleeves and containers.

Thank you very much for your recommendations on styli, and the need for a
16" platter, plus the upgraded tone arm.  That's exactly the kind of
information I'M seeking.

Klara
Klara Foeller, Curator,
Moving Image & Sound Collections
Missouri History Museum
Library and Research Center
Tel: 314.746.4513 | Fax: 314.746.4548
[log in to unmask] | mohistory.org





On 12/11/13 5:54 PM, "Eric Jacobs" <[log in to unmask]> wrote:

>Klara,
>
>Some comments:
>
>1. In priority order, the styli you will need are: a 2.5, 2.8 and 2.3 mil
>stylus.  Get a "truncated elliptical" stylus shape (as opposed to
>"elliptical" or "conical") if you can.  If you can't get "truncated
>elliptical", get "elliptical".  We use Expert Stylus in the UK to supply
>our cartridges and styli.
>
>
>2. WWII era discs may include glass-base discs (super fragile) that look
>just like aluminum-base discs to the untrained eye - I have some somewhat
>nerdish info here on ETs:
>
>http://www.theaudioarchive.com/TAA_Resources_Disc_Transcription.htm
>https://plus.google.com/photos/113693395070497997727/albums/58590599994406
>7
>2641
>
>https://plus.google.com/photos/113693395070497997727/albums/58586698087096
>4
>5137
>
>
>
>3. You may want to consider adding a 16-inch platter on top of the 12-inch
>platter - this will reduce resonance of the outer 2 inches of the disc
>during playback.  A 16-inch platter can also help with cleaning 16-inch
>glass discs, which are very fragile (see photo albums above).
>
>
>4. Consider upgrading to the 12-inch S-260 MK II tonearm for use with the
>Rondine 3 turntable - this will have less tracking error than the S-240
>tonearm, and is the ideal tonearm length for a 16-inch disc.  Both the
>S-240 and S-260 tonearms provide vertical adjustment of the tonearm base,
>which will allow using a 16-inch support platter.
>
>
>5. Do you have a record cleaning machine that can handle 16-inch discs?
>
>
>Eric Jacobs
>
>The Audio Archive, Inc.
>1325 Howard Ave, #906
>Burlingame, CA  94010
>tel: 408.221.2128
>mailto:[log in to unmask]
>http://www.theaudioarchive.com
>
>Disc and Tape Audio Transfer Services and Preservation Consulting
>
>
>
>On 12/10/13 8:28 AM, "Klara Foeller" <[log in to unmask]> wrote:
>
>>Hey colleagues,
>>I'm in the market for an affordable archival turntable, the ET turntable
>>I currently have has a bad bearing and is probably 60 years old.  From
>>threads I've read on this listserv, I've been thinking (and looking) at
>>the Rondine 3 turntable.  I have some questions and PLEASE guys, don't go
>>all nerdish on me, I won't understand!  I just need to know:
>>
>>  *   Are all Rondine 3s the same with 10" tone arms; large enough for
>>16" ETs (is the platter that large?).
>>  *   Is a "Rek-O-Cut" Rondine 3 any different?  Or is it the same
>>product?
>>  *   Am I correct that they adjust to any speed?
>>  *   Am I correct that they have interchangeable needle cartridges?
>>  *   What is the optimal needle cartridge for WWII era ET recordings?
>>I'm not sure what's in the machine we're using, but it's been doing an
>>excellent job.
>>  *   Any vendor recommendations?
>>
>>I probably won't be digitizing music 78s for a long time; most everything
>>is already available anyway, I'm working mostly on radio, spoken word ET
>>s.  Any pertinent observations or recommendations?
>>
>>Klara Foeller, Curator,
>>Moving Image & Sound Collections
>>Missouri History Museum
>>Library and Research Center
>>Tel: 314.746.4513 | Fax: 314.746.4548
>>[log in to unmask] | mohistory.org
>>[Facebook]<https://www.facebook.com/missourihistorymuseum>      [Twitter]
>><http://twitter.com/mohistorymuseum>  [History Happens Here]
>><http://www.historyhappenshere.org>      [You Tube]
>><http://www.youtube.com/user/MissouriHistory>
>>

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